Floor Of 4th Ventricle Anatomy

The ventricular system is a set of communicating cavities within the brain.

Floor of 4th ventricle anatomy. The fourth ventricle contains cerebrospinal fluid. The obex is also a. 3 the fourth ventricle is situated dorsal to the pons and upper part of medulla oblongata and ventral to the cerebellum. 4 what are the boundaries of fourth ventricle.

10 3 is formed by the pons and medulla fig. The fourth ventricle has a roof at its upper posterior surface and a floor at its lower anterior surface and side walls formed by the cerebellar peduncles nerve bundles joining the structure on the posterior side of the ventricle to the structures on the anterior side. The video demonstrates the external features of pons and the floor of the fourth ventricle. The caudal tip of the fourth ventricle where it becomes the central canal is known as the obex.

The floor of the fourth ventricle the rhomboid fossa see fig. It is covered by a thin layer of gray substance continuous with that of the medulla spinalis. Csf enters the ventricle via the cerebral aqueduct and leaves via one of four routes. Its rhomboid in shape diamond shaped and as a result of its shape the floor of the 4th ventricle is usually referred to as rhomboid fossa.

It has a diamond shape and is located in the upper portion of the medulla. The anterior part of the fourth ventricle is named from its shape the rhomboid fossa and its anterior wall formed by the back of the pons and medulla oblongata constitutes the floor of the fourth ventricle. These structures are responsible for the production transport and removal of cerebrospinal fluid which bathes the central nervous system. It s divisible into 2 parts.

The floor of fourth ventricle is also known as rhomboid fossa whi. The only naturally occurring openings between the ventricles of the brain and the subarachnoid space surrounding the brain are the foramina of luschka and magendie in the fourth ventricle. The fourth ventricle has an anterior ventral floor with a characteristic diamond shape named the rhomboid fossa and a posterior dorsal tent shaped roof. 4 1 lateral walls of fourth ventricle.

The fourth ventricle is one of the components of the ventricular system in the brain along with the lateral and third ventricles it extends from the cerebral aqueduct of sylvius rostrally to the obex caudally and is filled with csf. In this article we shall look at the functions and production of cerebrospinal fluid and the anatomy of the ventricles that contains it. Csf produced and or flowing into the fourth ventricle can exit to the subarachnoid space through lateral apertures and a single median aperture located in the inferiorportion of the roof. 4 2 floor or ventral wall of fourth ventricle 4 3 roof of the fourth ventricle.

Specifically it spans from the obex an area in the medulla.